| DW 1310 | 
            DW 1312 | 
            DS 1000 | 
        
        
            | Display | 
            7-segment-display, 13mm red | 
            7-segment-display, 13mm red | 
            7-segment-display, 13mm red | 
        
        
            | Display range | 
            ± 1999 Digit | 
            ± 1999 Digit | 
            ± 1999 Digit | 
        
        
            | Measuring rate | 
            app. 2,5 meas./sec | 
            app. 2,5 meas./sec | 
            app. 2,5 meas./sec | 
        
        
            | Accuracy | 
            < ± 1 digit ± 0,15% of indication | 
            < ± 1 digit ± 0,15% of indication | 
            < ± 1 Digit ± 0,1 % of meas.value | 
        
        
            | Influence of temperature | 
            < ±- 0,08 digit/K (refering to 25°C) | 
            < ± 0,08 Digit/K (refering to 25°C) | 
             | 
        
        
            | Limit values | 
             | 
            2 changer 250 VAC / app. 8A | 
            2 changer 250 VAC / app. 5A | 
        
        
            | Interface | 
             | 
             | 
            RS 232 - RXD, TXD with test software | 
        
        
            | Programming | 
             | 
             | 
            27 measure routines, with CPU | 
        
        
            | Working temperature | 
            0 °C ......+50 °C | 
            0 °C ......+50 °C | 
            -10 °C ......+50 °C | 
        
        
            | Supply voltage | 
            230V AC, +10/-15%, 7 VA | 
            230V AC, +10/-15%, 7 VA | 
            230V AC, +10/-15%, 3 VA | 
        
        
            | Connection | 
            screw terminal for approx. 1,5 mm² | 
            screw terminal for approx. 1,5 mm² | 
            lift terminal | 
        
        
            | Dimension | 
            app. 96 x 48 x 135 mm (WxHxD) | 
            app. 96 x 48 x 135 mm (WxHxD) | 
            app. 96 x 48 x 125 mm (WxHxD) | 
        
        
            | Installation depth | 
            app. 126 mm | 
            app. 126 mm | 
            app. 115 mm | 
        
        
            | Panel cut-out | 
            91,5 x 43 mm | 
            91,5 x 43 mm | 
            90,5 x 44,5 mm | 
        
        
            | Weight | 
            app. 450 g | 
            app. 490 g | 
             |